Police released new details about Jennifer Huston's actions on the evening of July 24, saying that they hoped it would lead to additional clues in the case.

A previous timeline released by investigators said that Huston had left her home in Dundee, approximately 25 miles southwest of Portland, at 5:45 p.m. She stopped at a credit union in the nearby town of Newberg, where she withdrew fewer than $100 from an ATM. Huston then went to a nearby gas station, where investigators believe she topped off the tank of her SUV.

On Tuesday, authorities added a new detail to the timeline: that Huston stopped at a Rite Aid after getting gas and bought the sports drink, trail mix, and store-brand sleeping pills. Investigators said that the amount of sleeping pills Huston had bought would not have been enough to induce a fatal overdose.

Investigators believe that Huston's SUV could travel between 300 and 350 miles on a full tank of gas.

A police statement released Tuesday said that Huston's husband, Kallen, had "been cooperative through several interviews with police and has passed a polygraph examination."

Authorities also said that there had been no confirmed sightings of Huston since she disappeared.